Washington — Members of the Supreme Court's conservative majority appeared open Wednesday to raising the bar for successfully challenging voting maps under a key pillar of the Voting Rights Act, a decision that would weaken the landmark law and limit the consideration of race in the drawing of congressional districts.

The high court appeared sharply divided in the long-running legal fight over Louisiana's congressional map , which was before the justices for a second time Wednesday. The high court first heard arguments in March over whether Louisiana lawmakers relied too much on race when it crafted new House district lines last year. But the justices declined to issue a decision then, and in August, it posed a new question for consideration: Whether state lawmakers' intentiona

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